Wheel for road-vehicles.



G. s. OGILVIB. WHEEL FOR ROAD VEHICLES.

APPLICATION FILED JUNE 28, 1907.

934,8@1 Patented Sept. 14, 190%@t dm K u...

y infWheels for Roadelfehicles, `ofwhich thev i To all wiom it may concern: l E

',GLENGA'IRN STUART oGILvIE, or wooDBmDGE, ENGLAND.

WHEEL ron noAD-vEHroLEgs.

Application-filed .Tune 28, 1907. Serial No.' $181,341.

Be it known that I, GLENCAIRN STUART -OGILviE,"'a subject ofthe King of Great Britv ain, residing at The Lodge, lVoodbi'dge, in the county' of Suffolk, *England, have 1nvented certain new and useful linpro'venients following is. a specification.

` This invention relates to an improved con.

struction ofv spring wheels` for road .vehicles liav-ing floating rims supported on a resilient i medium such as elastic tubes filled with. compressed air or some elastic material, india rubber, or other elastic rollers, or other equivalent, interposed between the rim and i any.

According to this invention the rim and -felly' members are correlated by a series of rigid links, preferably arranged in pairs1 each in pivotal engagement with one wheel member and pivotallyj connected with a vblock or shoe slidably mounted, with limited circumferential movement on the periphery vof the other member.'

The vinitial impactA and torque, forl either direction of relative movement of the-.two members, is taken by. and transmitted throughbuffer springs or other equivalent' cushions engaged directly or indirectly by the sliding shoe or block which is moreover l preferablyarranged to have a circumferen-- tial movement of limited extent before the buffer springs come into action.

example, in the,

vandwith parts removed, of a portion of a Wheel embodying one form of the present invention, having an elastic tube as a resilient supporting medium. `F'i g. 2 is a transversesection of the iioating rim and fixed felly .through the driving link pivots in Fig. l. Fig. 3 1s,a sectional plan view of part ofthe fixed felly through the felly pivot of the driving links, and Filo. t is aview similar to Fi 1 of a modihed form showing elastic rol ers as a resilient supporting medium and the driving links ivoted 'at both' ends to shoes mounted to sli e circumferen- Y Spcircation of Letters Patent. Patented Sept. 14, 1909.

i `tially'on the rim and felly members respeci `tiv l T ie member, or members, that carries the vslid able blocks, and which may be either the felly af oi rim c, or as shown'in ig,l 4 bothA the felly and the rim, is as shown in Fig. 2,

of channel iron for the .accommodation ofl y buffer spring b and-is correlated with the other wheel member c bypdriving links 'cl which are ,in pivotal engagement at their ends with thefelly and rim respectively'.

As shown in the drawings, the outer ends ofl each pair of buer springs are detacliably secured by cotters b to buiing plates e" depending froni and attached to removable plates or covers e, which plates and covers serve also to inclose completely .the space in which the bufer 'springs operateand which isusually lfilled with a suitable lubricant. f

The buiing plates el have lateral extensions e2 proJecting .under cover plates f which form -extensions of and abutments for the recured to the fixed felly by countersunk bolts tion.

' f and retain-the movable covers ein posi- Between the free ends of' each lpair of' buifer springs b is a sliding block or shoe g nel bar felly a and having laterally extending cheeks g which slide over and close the circumferential slots a in the sides of the felly through,whichprojects thefell bolt L which constitutes the felly pivot of t ie driving links d. The bolt h which passes centrally through the shoe g, is shouldered atk to prevent binding pf the driving links d when the nut la? is screwed home. The wall of the shoe g are perforated at g2 .to provide access to the bolt bearings of the lubricating grease which fills the springlchambers and which is automatically pumped into the bolt bearings by the'acti'on of the sliding shoe in running.

The space between the inner ends of the buHer spring b is greater than the thickness from front to rear of the shoe g, so thatwhen 'the wheel is unloaded' and at rest there will be certain clearness on. eachsidc of the shoe thus providing for a certain amount of free relative circumferential movement of the .tting freely between the sides of the chan- Y felly and rim before the springs b come into action. .It .is to be understood that when the term limited free circumferential movement is used hereinafter it is meant to llO ' .Il The'driving linlr 'torque onstarting and of the reta rding torce 'folly Das vdescribed above, corresponding "or blocliswhich are mounted respectively on vposes 'foin' pairsqor signify such free relative movement as may beallowed by the employment of the form of construction :just referredrto. s

The' pivot bolts -z' for connecting the 'driving linlis to a wheel member that 'does not carry the blocks g are preferably formed with a chamfered or dovetailed projection e" on the bolt head which takes into a similarly shaped notch in the edge of the iron felly band j et the Heating rim when the rim is so provided, and the washer 71" is similarly formed and similarly bedded in the band j. rl'he bolts z' are also shouldered to prevent bii'lding of the driving linksV l When the nuts are screwed home. lullig. l the wheel rim c is shown as solid, 'but-fin fig. 'et the rimand its contained parts are sliown constructed similarly to the parts being similarly lettered, and the driving linksl d' each connected with two shoes the two wheellmembers. 1 i ln itlie resilient supporting medium 1c(unprisesLa series oit elastic rollers n". y

i s are preferably inclined Ato the radius of the wheel with the end of the llink connected'with' the driving member vin ladvance of the other end,Y Thus the wheel in Fig. l lwould be a' driving' wheel for clock- Wiserotation anda trailing wheel for counterlclocvlfwise rotation. Y

' v/The springs 'b are of such strength as vto labsorb ,etliciently' all shocks oi transmission Whether from the wheel to the engine or conversely., such for example. as might be thrown' on lthe gearing` by j the wheel;` encountering obstaclesl on the road, or cai sed 1tliearrest ot'vmomentui'n due to :the sudden, application ,of the brakes, orby the abnormalresistance on starting due te inertia.v The ,gra dual Aapplicathm .olf the driving on4 the application voln'llxe brakes, dulto the vinterposition of `the butler lsprii also reduce very materially the excess s attrition to ywhich the'wheel tread is subject ,on starting orsud'denly stepping the vehicle.' Under-.normal conditions Athe driving` eloments, comprising-the shoes 'r/ and bolts lz, do. not reach J.the Alimiting positions determinedv by theslots o", .arubshould"they do so under abnormalconditions the spi-'ings b prevent a'ny'undue,shock of vengagement between :theib'olts la and the' endsof the slots.

The number of driving links andsets oit springs .may lie-varied to snit-various kinds 'of when and \.\'ehicles, but for ordinary puri kinks 'equally spaced -tlie` wheeb is a""co1r-venie1"t l arrange-'- ers, or other equivalent, and in the drawing in Figs. l and 2 it is shown as a continuous .pneumatic tube n interposed between the outer periphery of the telly and the inner periphery m of the floating rim; but in Fig. t the resilient medium` is representedby elastic rollers.

Having thus described the nature invention and the best means I know of carrying the same intol practical elect, what I claim is:

l. In resilient Wheels of the character here-l in referred to, a floating rim member and 'a fixed telly member, a resilient support interposed between said members, blocks separate' from said support, carried by and slidably mounted with limited free relative circumferential movementon one member and a series oit rigid links each pivotally connected with one of said blocks and in pivotal en gagemcnt with the other member', substantially as described.

2. .ln resilient wheels of the character herein referred'to, a floating rim memberand a fixed telly member, a resilient support interposed between said members, blocks separate from said support, carried by and slidably mounted with limited free relative circumferential movement on the respective Wheel members, and a series of rigid links each connecting two .blocks which are mounted respectively on the two wheel members,sub stan'ially as described.

S. ln resilient wheels ot the character herein referred to, a floating rim member and a fixed telly 1r einber, a resilient support inter' posed lbetween said members,- bloclis separate from said support, carried by and'slidably mounted with limited free'relative circumferential movemezt en one of said members, the said wheel member having slots, a series otpivot bolts carried by said blocks and adapted-to slide in said slots, a series of rigid links each pivotally connectedv with one of said bolts and in pivotal engagement with the second wheel member, and butter springs normally out of engagement with said sliding blockswhen the wheels are unf :terenti'al movement `on the respective wheel n embers, therwheel members having slots, ries'cfpivot bolts carried by said blocks ,'dapted 'to "slide, in said slots, a seriesof inks 'each co1meetingtyroblocls which are mounted respectively on the two wheel members, and buffer springs normally ont of ment of the wheel members, substantially as described;

5. In resilient wheels of the character referred to, a 4floating rim member and a fixed felly member, a resilient support interposed between said members, separate from said support, blocks carried by and slidably mounted on one of the wheel members with limited free relative circumferential movement, the said w ieel member liaving slots, a series of pivot bolts carried by said blocks and adapted to slide in said slots, a series of rigid links each pivotallyconnected with one of said bolts and in pivotal engagement with the second wheel member, buffer springs normally out of engagement with said sliding blocks when the wheels are unloaded, said springs being adapted to co operate with the slidingblocks to reduce the shock of engagement of the pivot bolts with the slots and provide for limited free relative circumferential movement of the wheel iembers, and the first said wheel member being constructed of channel iron for the accommodation of said buffer springs, subst-antiallyv as described.

6. In resilient wheels of the character referred to, a floating rim member and a fixed felly member, a resilient support interposed between said members, blocks separate from said support, carried by and slidably mounted on one of the wheel members with limited free rela'tive circuii'iferential movement, the said wheel member having slots, a series of pivot bolts carried by said blocks and adapted to slide in said slots, a series of rigid links eachpivotally connected with one of said bolts and in pivotal engagement with t-he second wheel member, buffer springs normally out of engagement with said sliding blocks when the wheels are unloaded, said springs being adapted to cooperate ,with the sliding blocks to reduce the shock of engagement of the pivot bolts with the slots and provide for limited free relative circumferential-movement of the wheel members, said first wheel member being constructed of channel iron for the accommodation of said bu'er springs, the first wheel member having compartments adapted to retain said sliding blocks and buffer springs, and said blocks having perforations adapted to admit slots, a series of pivot bolts carried by said ,l'

blocks and adapted to slide in said slots, a series of rigid links each connecting two blocks which are mounted respectively on the two wheel members, and buffer springs normally out of engagement with said sliding blocks when the wheels arr unloaded, said springs being adapted to coo :ate vwith the sliding blocks to reduce the snoei: of engagement of the pivot bolts with the slots and provide for limited free relative circumferential movement of. the wheel members, the said wheel .members being constructed of channel iron for the accommodation of said springs, substantially as described.

8. In resilient wheels of the character herein referred to, a iioating rim member and fixed felly mci'nber, a resilient support interposed between said members, blocks separate from said support, carried by and slidably mounted with limited free relative cireumferential movement on the respective wheel members, the wheel members having slots, a series of pivot bolts carried by said blocks and adapted to slide in said slots, a series of rigid links each connecting two blocks which are mounted respectively on the two wheel members, buffer springs normally out of engagement with said sliding blocks when the 'weels are unloaded, said s rings being adapted to cooperate with the s ding blocks to reduce the shock of engagementof the pivot bolts Withthe slots and provide for limited free relative circiimferential movement of the wheel members, the said wheel members being constructed of channel iron for the accommodation of said springs, and said blocks having perforations adapted to admit. lubricating material to the interior thereof during the running of the wheel, substantially as described.

In testimony whereofI I have signed n name to this specification, in the presence f l two subscribing witnesses.

GIENCARN STUART OGILVI Witnesses:

JOSEPH MILLAun, Geenen I. Burners. 

